
function aa () {
	// 'use strict'
	var b = function() {
		console.log('outer bbb', this)
	}
	b()
}


class User {
	constructor() {
		console.log(this)
	}

	aa() {
		var b = function() {
			console.log('User bbb', this)
		}
		b()
	}

}

aa()
console.log('-----------------------\n')
var user = new User()
user.aa()
